Very nice. It really helps me to understand the design quickly. It’s slow trying to follow traces and vias, etc…
PMed you about L6 driver purchase.
I have also made a crowdfunding campaign for the new reflow oven as I will not make the drivers more expensive
Interesting. I don’t know much about go fund me’s. I’ll look into it.
22mm D1S white flat
after the first ptototype failed due to PCB bug I can now finally announce I it for white flats running
first Prototype 20mm small LDO and MCU did not work out
2. Prototype of 22mm with D1S specifications works
still a few things to be addressed, like The not tented Viases next to the LED- Pad that are ground, they are there to get heat from MOSFET note spread but should be below mask
A public “Thank you!” and “Well done!” for the excellent 8A L6 buck driver. I received the replacement xhp70 from Simon yesterday and installed it and the driver with a large spring from BlueSwordM. The L6 is now a close second behind my Chimera for my favorite.
Nice!
Do you think it would be a good idea to make some future generation that would have FET on MCPCB, compatible with Led4Power’s PCBs?
I have that board thermally improved a lot filling vises with solder, placing a lot of them from ground plane right next to the FET planes
I guess up to 5-6A should be no problem with that PCB, 2 layer MCPCB would be too expensive
there is no single 20mm MOSLED DTP MCPCB for 3030 LEd that I am aware of
also the driver runs on 2.8V
I need for OTSM with also a diode after the LDO
the MOSFET has to have a low resistance below 2.5V for good reguilation at lower battery level
SIR800, 404 and the Infineon BSC009 have down to about 2V relative constant low on resistance
for LFPAK33 package I need a new MOSFET with similar prroperties
any recommondation what to change?
LDO in D1? For what?
CC FET OPAmp has to compare the voltage over the shunt
relative to to the PWM cycle which gets transformed to a DC voltage
The OPV changes the FET resistance to match both voltages the same
But for a constant max current the PWM voltage needs to be aleways the same amplitude so I have to use a 2.8V LDO
Got it. 
I didn’t mean to suggest switching entirely to FET on MCPCB but rather offering it as an option. LD4B can regulate 12A. And maybe FET removal would enable shrinking the driver so it fits more lights.
why buy it for 800€ when you can hack it in 30 minutes?
Legally your not supposed to. You lose the warranty as well. That’s the only reasons I can think of.
legally I can also set them back to original non A version, but why is it they sell me the hardware with locked features
unlocking cost 70-80% of the PSU?
So is it legal you reflash the firmware on a driver?
its just a few bits in a a code line that make A version or non A version, no hardware or special calibration
the calibrated PSU costs another 300€ more
I don’t know anything about it, but if it comes with any kind of user agreement, then that could be the basis for the “legally” that Jason mentions. Other than that, it’s just a loss of warranty, since they “legally” don’t have to honor a warranty on a modified piece of hardware. I say go ahead and do it, as long as you are willing to take the risk.
EDIT: I just want to add that people have been fighting this kind of “anti-feature” design for a long time with technology, including Microsoft Windows, Canon digital cameras, Apple iPhones, even Android phones (supposedly open source software). Those are just some of the examples off the top of my head, but it seems to me that the more expensive the technology is, the more likely that the manufacturer will install “anti-features” so you have to pay even more money to get full functionality.
Legally it’s complex and depends on jurisdiction. Manufacturers often want buyers to be licensors rather than owners. Some countries push back more some push back less.
They do it with lots of electronics. My to modify a Fluke 177 to a Fluke 179 takes 15min. It’s a lot cheaper! Well done Lexel!
I mean, Lexel is an individual, not a company.
What he does with what he bought is not the company’s business.
Yes, if he has to do a warranty claim, he’ll have problems.
He can just flash back the software if needed.
There’s what’s legal, and what shouldn’t be illegal.